What is it you hope to achieve by fitting a non OEM filter?
It may stop finer particles of dust getting into the engine compared to an OEM filter, but the dust particles in the UK aren't a major problem to vehicle engines.
Yes you can put more air into the engine which in turn will require more fuel (which is where the couple of extra HP comes from). The more fuel/air mixture you burn means that the gas being expelled increases, therefore increase in emissions. If the engine cannot burn all the fuel/air mixture before the exhaust stroke, raw fuel is passing through the catalyst, which in turn eventually rots the metal within the catalytic converter.
On older carburetor cars, you could adjust the fuel air mixture by turning a screw. If you wanted a lean burn engine, you would decrease the fuel going into the engine, if you wanted more power, you would increase the fuel to air ratio. On modern injection engines, the computer measures the air flow and adjusts the fuel delivered accordingly.
Edit, just seen that your comment was taken from a reply, I'm guessing from k & N filters. Email one of the goons from ebay that sell the magnets that wrap around the fuel pipe and ask if they decrease fuel consumption. They will say "yes", but they are salesmen, they want to make the sale so will tell you what ever you might believe in an effort to make you part with your hard earned cash.
Be interesting to put a car on an emissions test machine with and OEM filter and then swap it for a cone and see if there is a massive difference.
Its still going to pass an MOT though and thats an end to it.
In actual fact as said, you are better off with a pannel filter, but if this is what you want go for it.
Leagality is not an issue with this filter.
#17: Re: 57i legal??? Author: EuroPeugeot, Location: SW EnglandPosted: Thu Sep 29, 2011 7:27 am ---- All this for a stupid cheap crappy air filter.
The police won't pull you over for an air filter they can't see.
The police and/or courts wont be dishing out any points of fines for use of an air filter.
The police won't pull you over for an air filter they can't see.
The police and/or courts wont be dishing out any points of fines for use of an air filter.
FML.
This forum sometimes.
Wasnt do with police??? What the hell...if i didnt know, then this is the best place to find out?
#19: Re: 57i legal??? Author: EuroPeugeot, Location: SW EnglandPosted: Thu Sep 29, 2011 7:48 am ---- You wondered if it was illegal?
The police enforce the law.
I know I'm going abit far.
It wasn't against you, just all this talk about an air filter
#20: Re: 57i legal??? Author: dumdum0910, Location: letchworthPosted: Thu Sep 29, 2011 7:57 am ---- sorry to hijack but ive got a K&N panel filter in my 1.1 206 . could this be causing my eml to come on . fault code p0420 catalytic converter. ?
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